Drawing on the past while looking to the future

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The new Gary Fisher HiFi(Image credit: James Huang)

For the most part, Trek's mountain bike introduction was staffed by the usual cast of characters: an assortment of product and development crew, public honchos Gary Fisher and Zapata Espinoza, as well as a variety of its professional riders, including regional pros Nick Martin (www.ridewithnickmartin.com) and Ross Schell as well as long-time team member Travis Brown, who is now heavily involved in Trek's own product development process.

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However, the most significant figure on hand from Trek was Mr. Trek himself, company president John Burke. Burke's presence at the event sent a clear signal as to how important it is for Trek to regain its position in the mountain bike world. In his own words, "We've grown our business a lot in the last five years in a lot of different areas, and it's elevated Trek in the marketplace. One area of business where we haven't grown is the mountain bike business, especially when you take a look at full-suspension and serious mountain bikes. It hasn't been a big part of what we were about. We've got a really good crew here and a lot of talented people, and we haven't performed to what we think we're capable of. If you take a look at what we're introducing tonight, we've gone out there and we think we're bringing out best-in-class product. This is just the start, but it shows the future direction of the company."

To Trek's credit, the company does have a rather long and storied history in mountain bike development and it clearly wanted to remind the press as such. The presentation hall was not only littered with images of past glory, but also with physical examples of prior achievements, the highlight of which was one of Gary Fisher's own RS-1 full suspension bikes complete with then-revolutionary parallelogram linkage rear suspension. Unfortunately, also on hand was the more forgettable 9500 with its pogo-sticklike T4xC rear end, but I digress…

Gary Fisher's currently available Genesis frame geometry was introduced ten years ago in 1996. It was conceived as a way to improve the high-speed stability and descending prowess of its mountain bikes while retaining good climbing performance, but some riders felt that low-speed handling ability was sacrificed in the shuffle. Since then, the Genesis philosophy has remained largely unchanged. For '07, however, Fisher product manager Aaron Mock and his team of engineers went back to the drawing board to create Genesis 2.0 in order to address the geometry's shortcomings.

Developed in conjunction with Keith Bontrager and Manitou, the new system revolves around a custom-built Manitou suspension fork that incorporates a 46mm offset, an increase of 7mm. To counterbalance the increased fork offset, Genesis 2.0 head tubes are pulled back approximately 5mm to retain roughly the same wheelbase measurement. These changes result in the same high-speed and descending characteristics as with the original Geometry setup, but the reduced trail is said to greatly enhance its low-speed turning ability with diminished "wheel flop".

For sure, 7mm doesn't sound like much but to put things in perspective, road-going Moto GP riders can allegedly distinguish just a 6 percent change in trail. In Fisher's case, 7mm equates to a relatively huge 11 percent. Manitou will supply not just one G2-specific fork, but two: a newly updated Minute as well as an all-new Relic. Both will wear prominent "Handling by Bontrager" decals as well as the G2 logo.

Genesis 2.0 geometry is featured on the company's brand-new HiFi, which replaces the outgoing Cake trail bike. The new bike abandons the Cake's basic single-pivot layout in favor of a modified four-bar (or "faux bar" as there are no chainstay pivots) configuration with a linkage-activated Fox air shock that provides 120mm of rear wheel travel. In spite of the additional pivots and hardware, the HiFi frame reputedly weighs only 2378g (5.24lb) in a medium size complete with shock and hardware. Hydroforming plays a key role in the HiFi's diet plan, most notably in the heavily shaped chainstays. As with the Cake, the HiFi chainstays are asymmetric with the non-driveside stay making a beeline directly from the dropout to the main pivot in order to increase rear end stiffness while dropping weight. In addition, carbon fiber is used in the seatstays to save 60g over even the old XC-specific Sugar rear end.

Cartridge bearings are used extensively throughout the frame, including two oversized units at the main pivot, four at the seatstay-located dropout pivots, and more still at the seat tube linkage. All of the bearings are also fully press-fit for maximum surface contact area and rigidity, and the main pivot bearings are spaced very widely for better support. Word is still out on whether or not Trek plans to offer a service kit to facilitate bearing replacement in the new press-fit setups but dealers are likely to clamor for one.

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